Table 1

Characteristics of intervention and control groups

	Control		Intervention		p Value
	n = 804	%	n = 1234	%	p Value
*Six respondents did not answer the smoking status question.
†Denotes a significant difference in the distribution between control and intervention compared with the whole sample.
Current smokers*	73	9.1	113	9.2	0.95
Age
12 year olds	159	19.8	296	24.0	0.07
13 year olds	179	22.3	283	22.9	0.78
14 year olds	152	18.9	283	22.9	0.08
15 year olds	107	13.3	176	14.3	0.6
16 year olds†	114	14.2	114	9.2	0.002
17 year olds†	93	11.6	82	6.7	0.0004
Movie
Divine Secrets of the Ya Ya Sisterhood	8	1.0	19	1.5	0.3
Birthday Girl	20	2.5	37	3.0	0.51
About A Boy†	5	0.6	28	2.3	0.005
Mr Deeds	146	18.2	190	15.4	0.17
Men in Black II	625	77.7	960	77.8	0.99